01 - Set the oven to 400°F and prepare a baking sheet by lining it with parchment paper.
02 - Pat the drained chickpeas thoroughly with a clean kitchen towel or paper towels, removing any loose skins to enhance crispiness.
03 - In a mixing bowl, combine chickpeas with olive oil, cumin, smoked paprika, garlic powder, cayenne pepper if using, sea salt, and black pepper. Toss until evenly coated.
04 - Spread the seasoned chickpeas in a single layer on the prepared baking sheet.
05 - Place the baking sheet in the oven and roast for 25 to 30 minutes, stirring or shaking the pan halfway through to ensure even crisping.
06 - Remove from the oven and allow the chickpeas to cool slightly before serving, as they will continue to crisp as they cool.